Seasonal tune-up and full diagnostic on your Carrier, Trane, or Goodman system - readings shown to you before any repair is proposed
Diagnosis first, numbers second - you approve the repair price before a single part goes in.
HVAC Company in Waltham, MA
Meadowsweet Heating & Air handles heating and cooling work across Waltham, from the triple-deckers near Moody Street to the ranch homes out toward Lexington. Waltham jobs are different because the housing stock is different. Many homes were built between 1900 and 1930 for Watch Company workers, and most still run on steam boilers or gravity hot-water systems with no ductwork. That means repair and installation here requires more planning than in newer suburbs. For a written price before any work starts, call (747) 966-3037.
Why Waltham Homes Are Different
Waltham sits in the Charles River valley about 10 miles inland, which gives it slightly harsher winter swings than coastal Boston. Most Waltham homes see between 6,500 and 7,000 heating degree days a year, so heating systems work harder here than in towns closer to the water. Summers bring humidity that settles into the river corridor, and we regularly see outdoor condensing units near low-lying yards corroding faster than the same unit would on higher ground.
The housing stock creates the bigger difference. The dense blocks around downtown and Moody Street were built for the Watch Company workforce, and those triple-deckers and two-families were almost all heated originally by coal, later converted to gas steam or gravity hot-water. Most have no ductwork. When a furnace fails in one of these homes, the fix often involves radiators and boiler piping, not a conventional furnace swap. In the outer neighborhoods, the post-WWII ranches and capes are more standard, but even those are now 60 to 80 years old and showing their age.
There is also the commercial side. The Route 128 corridor runs through Waltham, with lab and office parks along Totten Pond Road and Winter Street. Those spaces need precision climate control that a residential-only contractor would not see. Working in Waltham means understanding all three housing types and the lab stock along 128.
Our Main Waltham Services
Most Waltham homeowners call us for one of three things: a broken air conditioner in July, a furnace that will not start in January, or a plan to finally replace an old system. Here is what each involves in Waltham specifically.
AC Repair in Waltham
In Waltham’s humid summers, a failed AC is more than uncomfortable. The river valley humidity makes a hot house feel hotter, and whole-home dehumidification depends on the system running correctly. We see a lot of corroded condensers in low-lying yards, clogged drain lines from heavy summer moisture, and refrigerant leaks on older systems. A repair is usually $150 to $650. We diagnose first, write the price, and then fix it. Full details are on our AC Repair in Waltham page.

Furnace Repair in Waltham
Most furnace calls in Waltham come from those older steam and gravity hot-water systems near downtown. When a boiler short-cycles or a circulator pump fails, the radiators stop heating fast. We also work on conventional forced-air furnaces in the ranches and capes. Repair work runs $150 to $700 depending on what has failed. We carry parts for the major brands and write the price before touching anything. Read more on our Furnace Repair in Waltham page.

AC Installation in Waltham
Installing central air in a Waltham triple-decker or two-family usually means creating ductwork where none exists, or choosing a ductless mini-split system instead. In homes with existing forced-air heat, a straight replacement is simpler. New AC installations in Waltham typically run $3,500 to $7,500, and the right approach depends on the house. We measure, quote a fixed price, and schedule the work. See our AC Installation in Waltham page for the full picture.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Waltham
Our technicians work on Rheem, York, Daikin, and Bryant equipment, among others. We keep common parts stocked locally so a repair is not waiting on a warehouse. If your system falls outside the brands we stock heavily, we can almost always get parts the same week. For details, see our brands.
Pricing for HVAC Company in Waltham, MA
Here are the price ranges Waltham homeowners can expect for common work. These are the numbers we quote over the phone so families can plan before we arrive.
| Service | Typical range in Waltham |
|---|---|
| AC repair | $150 - $650 |
| Furnace repair | $150 - $700 |
| AC installation | $3,500 - $7,500 |
| Tune-up | $80 - $200 |
In Waltham, the main thing that pushes a price toward the top of a range is the building itself: triple-deckers with no existing ductwork, masonry chimneys that need relining before a boiler can be commissioned, or tight mechanical closets in older two-families. Every visit starts with a written price before any work starts, so there is no surprise at the end.
Neighborhoods We Serve in Waltham
We work across Waltham, and the neighborhoods below reflect the mix of housing we see.
- Moody Street area - the oldest housing stock in the city, mostly triple-deckers and two-families with steam and hot-water heat
- South Side - a mix of older worker housing and smaller post-war homes
- Warrendale - more ranches and capes, many with forced-air furnaces by now
- Piety Corner - older single-family homes and two-families, a lot of original radiators
- Cedar Woods - newer homes, more standard equipment, fewer surprises
Most repair calls in Waltham get a same-day or next-day response depending on the time of year. Peak summer heat and winter cold snaps are the busiest times.
Service Area – Cities Near Waltham
Beyond Waltham itself, our crews work in the surrounding towns where the housing stock and commute patterns are similar. We serve Belmont, MA to the east, Lexington, MA to the north, and Newton, MA to the south. We also cover Arlington, WA for those who search under the Arlington name.
Serving Waltham, MA - Our Local Coverage Area
We’re based in the Waltham area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About HVAC Company in Waltham
Most repair calls in Waltham are answered same-day or next-day, depending on the season and the time of day you call. A live person answers 24 hours a day, 7 days a week, so you will not sit in a voicemail queue. Peak summer and deep-winter cold snaps are the busiest stretches.
Often yes, especially when older multi-family homes are involved. Waltham’s building stock means work like boiler replacements, chimney relining, or adding new ductwork can trigger permit and code requirements. The chimney relining issue near Moody Street is a frequent one. We handle the paperwork and build it into the written quote.
Yes. The lab and office parks along Totten Pond Road and Winter Street are part of our Waltham service area, and those jobs need a different level of care: tighter tolerances, more documentation, and scheduling around occupied lab spaces. The same written-price-before-work rule applies to commercial work.
If your heat or cooling is not working, or you are planning a replacement, call Meadowsweet Heating & Air at (747) 966-3037. You will get a live person, a straight answer, and a written price before any work begins.
What happens when you call
- 1A real person answersNo phone trees - talk to a local hvac pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Waltham Customers Say
"AC repair in July. The tech laid a mat down by the indoor unit and wore booties through the house. Fixed it fast and left zero mess. Quiet and kind, good with our nervous dog too."
- Delia Frost"Good repair and a very tidy, respectful tech. The appointment window was wide and he came near the end of it, but he texted ahead. Work itself was clean and done right."
- Nadine Oakley"Furnace tune up before winter. He was careful going in and out, closed the gate behind him every time because of the kids, and cleaned up the work area completely. Calm, thorough guy."
- Marcus Pell







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